Sectional oven-wall



A. MAEHLER.

SECTIONAL OVEN WALL.

APPLICATION FILED JUNE a. Isle.

1,320,882. Patented Nov. 4, 1919,'

tu Fin.

ARTHUR MAEHIJER, OF CHICAGO, ILIIIOIS.r

SECTIGNAL OVEN-WALL.

To all whom t may concern.'

Be it known that I, ARTHUR MAEHLER, a citizen of the United States of America, and a resident of Chicago, in the county of Cook, State of Illinois, have invented certain new and useful Improvements in Sectional Oven-Walls, of which the following is a specification.

This invention relates to that class of wall-s for enameling and like ovens in which aplurality of metal clad slabs or plates constitute lthe walls and' roof of the oven. And the present improvement has yfor its objects zy To provide a structural formation and association of the non-conducting body or iilling4 of a wall slab or plate and the sectional sheet metal casing thereof, whereby the inner and the outer sections of the sheet metal casing are attached to said body or lling in an effective and substantial manner, without heat conducting contact between said inner and outer sections, and with which a simple, non-conducting and effective connection between abutting ends of the slabs is attained.

To provide a structural formationof the upper end of the metal clad wall slabs or plates aforesaid, whereby an effective support and attachment is provided for a similar slab or plate arranged horizontally to constitute a roof portion of the oven, all as will hereinafter more fully appear.

In the accompanying drawing z- Figure l, is a sectional perspective view of a lower corner portion of an oven, illustrating the vertical wall structure of the present improvement.

Fig. 2, is a detail vertical section of an upper end of an oven, illustrating the roof connection of the present improvement.

Like reference numerals indicate like parts in both views.

Referring to the drawing, 1 designates the inner and main body or filler of a wall slab or plate formed of any usual andsuitable non-combustible and non-conducting material or composition, and 2 and `4 designate the respective outer and inner sheet metal inclosin plates applied to the respective outer and inner faces of the body or iller 1` to constitute'a metal clad wall slab. One partl of the present improvement involves structural means whereby the sheet metal plates 2, 3, are attached to the body `or ller l to protect the faces, corners and Specification of Letters Patent.

Application led J une 9, 1919.

Patented Nw. a, raie. Serial No. 302,666.

ends of the same without any direct heat conducting contactbetween said sheet metal plates, and accordingly consists vas follows:

4 designates a rectangular groove extending longitudinally of the slab body or lilling l and formed midway in an end of thel suitable non-com ustib e and non-conducttongue or strip of ing material or composition, and having a thickness equal to the aforesaid space separating the inner flanges of the folds 5*, and a width equal to twice the depth of said space, so that when introduced into the spaces of two adjoining wall slabs or plates of the present construction, the said joining tongue 6 will form a tight, substantial and heat intercepting joint at the seam between said slabs or plates.

The above described construction is equally applicable to the usual plane rectangular slabs used as sectional members of the oven wall, as well as in the angularly formed corner members of said wall, as illustrated in Fig. 1.

7 designates structural metal angle bars attached to the wall slabs adjacent to the meeting edges thereof, and 8 designates a companion cross-shaped structural metal |bar secured to :an angularly formed corner wall Y slab, with the outstanding flanges of the said bars orificed to receive a plurality of horizontal tie .rods or bolts 9, by which a sectional oven wall of the present construc tion is drawn together and held in a strong substantial manner, and consists as followsf 10 and 1l designate portions of the outer and inner sheet metal casing plates 2 and 3, extending a distance above the top of the body or filler 1, with the portion 10 having a greater vertical extension than the portion 11 as shown.

12 designates a sheet metal rider plate or to receive and support an end of a horizontally arranged metal clad slab or plate, used as a roof member, as illustrated in Fig. 2 and adapted to provide a tight, substantial and heat .intercepting joint at such point in the Wall structure of an oven.

lHaving thus fully described my said invention what I claim as new and desire to secure by Letters Patent, is

1. A metal clad slab for oven Walls, comprising a main non-conducting body formed With a longitudinal groove in its end face, and outer and inner metal casing plates formed With rebent folds adapted to embrace the outer and inner walls of said groove and separated by a space adapted to receive a joining tongue, substantially as set forth;

2. A metal clad slab for oven Walls comprising a main non-conducting body, outer and inner metal casing plates attached to the opposite sides of said. main body and prosions and adapted to provide an angular pocket for the end of a roof slab, substantially as set forth.

3. In a sectional oven Wall ofthe type described, the combination of a series of vertically arranged slabs formed with grooves in their meeting ends, outer and inner metal casing plates having engagement with said grooves, a joining strip fitting said grooves, angle bars secured to the meeting ends of said slabs, and tie bolts extending through ianges of said angle bars, substantially as set forth,

4. In a sectional oven Wall of the type described, the combination of a series of vertically arranged Hat slabs, an angularly formed corner slab, said slabs lbeing formed with grooves in their vertical meeting ends, outer and inner metal. casing plates having engagement With said grooves, joining strips litting sai-d grooves, structural metal angle and cross bars secured to the verticaledges and corners of said slabs, and tie rods eX- tending through anges of said' bars, substantially as set forth.

Signed at Chicago, Illinois, this 6th day of June, 1919.

- ARTHUR MAEHLER. 

